cis-1,2-Dichloroethylene
Town of Florence
1,2-Dichloroethylene, a neurotoxic solvent, exists in two different forms: trans-1,2-dichloroethylene and cis-1,2-dichloroethylene. A mixture of the two forms is used to manufacture other solvents and chemical products.
14
Samples
0
Samples exceeding legal limit (MCL)
0
Samples exceeding
health guidelines
Testing results - average by year
| Year | Average result | Samples taken | Detections | Range of results |
|---|---|---|---|---|
| 2014 | ND | 4 | 0 | ND |
| 2015 | ND | 3 | 0 | ND |
| 2016 | ND | 4 | 0 | ND |
| 2017 | ND | 1 | 0 | ND |
| 2018 | ND | 1 | 0 | ND |
| 2019 | ND | 1 | 0 | ND |
ppb = parts per billion
State and national drinking water standards and health guidelines
EPA Maximum Contaminant
Level (MCL) 70 ppb
The legal limit for cis-1,2-dichloroethylene, established in 1991, was based on a toxicity study in laboratory animals conducted in the 1980s.
ppb = parts per billion
All test results
| Date | Lab ID | Result |
|---|---|---|
| 2014-03-18 | 140319-002VO | ND |
| 2014-05-29 | 140530-002VO | ND |
| 2014-08-28 | 140829-005VO | ND |
| 2014-10-20 | 141021-004VO | ND |
| 2015-03-16 | 150317-021VO | ND |
| 2015-05-19 | 150520-003VO | ND |
| 2015-08-24 | 150825-008VO | ND |
| 2016-08-09 | 160810-017VO | ND |
| 2016-08-09 | 160810-018VO | ND |
| 2016-08-09 | 160810-019VO | ND |
| 2016-12-13 | 161214-002VO | ND |
| 2017-09-19 | 170920-007VO | ND |
| 2018-07-16 | 180717-005VO | ND |
| 2019-07-25 | 190726-005VO | ND |